Procedure for Filling Core Sonic Pipes
The following describes the procedure for filling core sonic pipes with cement grout. Prepare the mix as per the proposed mix design given below using following equipment’s:
- Mixer
- Piston Pump
- Grout hose of suitable length
Grout Mix Design For Filling Core Sonic Pipes
For Grout Strength 30N/mm2
| Mix Design | OD Weights |
| MSRC (Type II) | 1420 kg/m3 |
| Microsilica | 70 kg/m3 |
| Free Water | 510 ltr/m3 |
| Super Plasticizer (Conplast-SP432) | 7 ltr/m3 |
| Fresh concrete density | 2000 kg/m3 |
For 100 Liter Mix
| Mix Design | OD Weights |
| MSRC (Type II) | 142 kg |
| Microsilica | 7 kg |
| Free Water | 51 ltr |
| Super Plasticizer (Conplast-SP432) | 0.7 ltr |
For 100 kg Cement
| Mix Design | OD Weights |
| MSRC (Type II) | 100 kg |
| Microsilica | 5 kg |
| Free Water | 36 ltr |
| Super Plasticizer (Conplast-SP432) | 0.5 ltr |
GROUT MIX DESIGN (Alternative)
Grout Mix Design For Filling Core Sonic Pipes
For 100 kg cement
| Mix Design | OD Weights |
| Cement | 100 kg |
| Dune Sand | 88 kg |
| Microsilica (ELKEM) | 3 Kg |
| Free Water | 35 ltr |
| Super Plasticizer (Conplast-SP432) | 1.5 ltr |
Grout Strength: 30 N/mm2
Filling Core Sonic Pipes
- The grout has to be mixed for at least 5 minutes using Bauer’s mixer and piston pump.
- The grout hose will be connected at one end to the piston pump and the other end to the bottom of sonic pipe.
- The grout will then be allowed to slowly and continuously flow to the core sonic pipes through the grout hose.
- At the same time of pouring of grout, the grout hose has to be pulled up in a similar way as done in the tremie method.
- The quantity of grout entering the sonic pipe can be measured by counting the strokes of the piston pump (1 stroke = 0.3 ltrs of grout).
Discover more from Method Statement HQ
Subscribe to get the latest posts to your email.